Three cubic equations of state are carefully examined to evaluate their capability for correlating the supercritical solubility data of solid solutes in compressed gases. The overall average absolute deviations between experimental and predicated values for 35 binary systems are 17.33%(Readily-Kwong), 22.92%(Soave), and 22.93%(Peng-Robinson) using one binary parameter and 12.55%(Redkuch-Kwong), 15.57%(Soave), and 13.71%(Peng-Robinson)using two binary parameters.